D-Sub, D-Shaped Connectors

D-Sub, D-Shaped Connectors - Contacts

Part Number	Description / PDF	Quantity
5-228618-1 TE Connectivity Aerospace Defense and Marine	CONN D-SUB PIN COAX CABLE CRIMP	117
09691815233 HARTING	CONN D-SUB SOCKET COAXIAL CABLE	0
09691817143 HARTING	D SUB MIXED FE SOLDER CRIMP COAX	36
8656351064LF Storage & Server IO (Amphenol ICC)	CONN D-SUB SOCKET 24-28AWG CRIMP	1196
330-5291-050 VEAM	CONN D-SUB PIN 26-30AWG CRIMP	6347
131C11029X CONEC	CONN D-SUB PIN 12-14AWG CRIMP	5192
1731120214 Woodhead - Molex	CONN D-SUB SOCKET 20-24AWG CRIMP	1903
09560008165 HARTING	CONN D-SUB PIN 24-26AWG CRIMP	0
1727040156 Woodhead - Molex	CONN D-SUB SCKT 8-12AWG SLDR CUP	1960
1731120269 Woodhead - Molex	HIGH CURRENT SOLDER POT CONTACT	345
1727040135 Woodhead - Molex	CONN D-SUB SOCKET 20AWG SLDR CUP	609
132C10029X CONEC	CONN DSUB SCKT 12-14AWG SLDR CUP	2458
132A15019X CONEC	CONN D-SUB SOCKET 20-24AWG CRIMP	22420
132C10019X CONEC	CONN DSUB SCKT 16-20AWG SLDR CUP	1601
1731120202 Woodhead - Molex	CONN D-SUB PIN 20-24AWG CRIMP	2575
09670008570 HARTING	CONN D-SUB PIN 20-24AWG CRIMP	0
09691815421 HARTING	CONN D-SUB SOCKET SLDR CUP GOLD	11
1731120054 Woodhead - Molex	CONN D-SUB PIN COAX GOLD	5
09670008470 HARTING	CONN D-SUB SOCKET 2-20AWG CRIMP	109
D130344 VEAM	CONN D-SUB SCKT COAX CABLE CRIMP	159

D-Sub, D-Shaped Connectors - Contacts

1. Overview

D-Subminiature connectors, commonly referred to as D-Sub or D-Shaped connectors, are electrical connectors featuring a D-shaped metal shield. They are widely used for data, signal, and power transmission in industrial, computing, and communication systems. Their robust design ensures reliable electrical continuity and mechanical stability in demanding environments.

2. Main Types and Functional Classification

Type	Function Features	Application Examples
DE-9	9-pin configuration, compact size	RS-232 serial interfaces, PC COM ports
DB-25	25-pin configuration, parallel signal transmission	Older printer ports, industrial control systems
DC-37	37-pin high-density arrangement	Military equipment, test instrumentation
HD D-Sub	High-density double-row contacts	Video graphics (VGA), industrial automation

3. Structure and Components

Typical D-Sub connectors consist of: - Metal Shell: Zinc alloy or steel housing with EMI shielding - Insulator: High-temperature resistant thermoplastic or ceramic - Contact Arrangement: Male pins (plug) or female sockets (jack) in staggered rows - Mounting Hardware: Threaded or snap-in fixing mechanisms Contacts are usually made of phosphor bronze or beryllium copper with gold/tin plating for corrosion resistance.

4. Key Technical Specifications

Parameter	Typical Range	Significance
Current Rating	1-5 A per contact	Determines power handling capacity
Voltage Rating	50-600 V AC/DC	Ensures dielectric strength
Contact Resistance	10 m	Impacts signal integrity
Insulation Resistance	1000 M	Prevents leakage currents
Operating Temperature	-55 C to +125 C	Environmental durability

5. Application Fields

Computer peripherals (monitors, keyboards)
Industrial automation (PLCs, sensors)
Telecommunications (modems, routers)
Aerospace (avionics systems)
Test and measurement equipment

6. Leading Manufacturers and Products

Manufacturer	Representative Product
TE Connectivity	DEUTSCH D-Sub series with EMI filtering
Amphenol	High-density HD D-Sub 90-position connectors
Molex	Micro D-Sub for compact industrial applications
Samtec	High-speed D-Sub with 10 Gbps data rate

7. Selection Guidelines

Verify current/voltage requirements against contact ratings
Choose shell size based on pin count needs
Consider locking mechanisms for vibration-prone environments
Specify plating material for corrosion resistance
Ensure compliance with industry standards (e.g., MIL-DTL-24308)

8. Industry Trends

Key developments include miniaturization (sub-D connectors), hybrid designs integrating USB-C/HDMI signals, improved EMI shielding for 5G applications, and surface-mount technology (SMT) compatibility. Environmental regulations drive adoption of RoHS-compliant materials and lead-free plating solutions.